CVE-2026-75044: In JetBrains YouTrack before 2025.3.156085, 2026.1.13914, 2026.2.18095 missing authorisation allowed an auth

Routine

HIGH 8.1UPGRADE

CVE-2026-75044 is a high-severity flaw (CVSS 8.1) affecting youtrack. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

In JetBrains YouTrack before 2025.3.156085, 2026.1.13914, 2026.2.18095 missing authorisation allowed an authenticated user to delete arbitrary entities via the mailbox endpoint

Why this priority

High severity

A fixed release or distro patch exists.

Risk facts

CVSS score	8.1 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.4% (top 64%)
CISA exploited list	No
Weakness	CWE-862
Published	2026-08-17
Last modified	2026-09-15

Publisher (CNA): JetBrains s.r.o. · Vendor: jetbrains

Last updated 2026-09-15 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-08-17 16:17 UTCPublished CVE record published
2026-09-15 17:46 UTCUpdated Record last modified

jetbrains youtrack UPGRADE

Affected: < 2025.3.156085 · >= 2026.1 and < 2026.1.13914 · >= 2026.2 and < 2026.2.18095

Fixed in: 2025.3.156085, 2026.1.13914, 2026.2.18095

Safe to downgrade to: a release before 2026.1

1. Check installed version

apt-cache policy youtrack || rpm -q youtrack || youtrack --version

2. UPGRADE to 2025.3.156085 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade youtrack

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade youtrack

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

3. If no update is available yet, DOWNGRADE to a release before 2026.1 (Debian / Ubuntu)

apt-cache madison youtrack sudo apt install youtrack=<VERSION_BEFORE_2026.1> sudo apt-mark hold youtrack

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list youtrack sudo dnf downgrade youtrack-<VERSION_BEFORE_2026.1> sudo dnf versionlock add youtrack

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-75044?

youtrack: upgrade to 2025.3.156085, 2026.1.13914, 2026.2.18095. Exact commands for each OS are on this page.

Is CVE-2026-75044 being exploited?

CVE-2026-75044 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-75044 affect?

CVE-2026-75044 affects youtrack. Severity is high (CVSS 8.1). In JetBrains YouTrack before 2025.3.156085, 2026.1.13914, 2026.2.18095 missing authorisation allowed an authenticated user to delete arbitrary entities via the mailbox endpoint

How urgent is CVE-2026-75044?

Priority 37/100. High severity

Related CVEs

CVE-2026-33392 HIGH 7.2 UPGRADE In JetBrains YouTrack before 2025.3.131383 high privileged user can achieve RCE via sandbox bypass
CVE-2026-57923 MEDIUM 5.3 UPGRADE In JetBrains YouTrack before 2026.2.16593 improper authorisation in the app configurations endpoint allowed mo
CVE-2026-57921 MEDIUM 4.3 UPGRADE In JetBrains YouTrack before 2026.2.16593 improper access control allowed reading users' private data via the
CVE-2026-57924 MEDIUM 4.3 UPGRADE In JetBrains YouTrack before 2026.2.16593 default role configuration exposed excessive user profile details
CVE-2026-57925 MEDIUM 4.3 UPGRADE In JetBrains YouTrack before 2026.2.16593 improper access control allowed reading saved queries and tags

References

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